CN205543818U - Alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make - Google Patents
Alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make Download PDFInfo
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- CN205543818U CN205543818U CN201620105086.9U CN201620105086U CN205543818U CN 205543818 U CN205543818 U CN 205543818U CN 201620105086 U CN201620105086 U CN 201620105086U CN 205543818 U CN205543818 U CN 205543818U
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Abstract
The utility model relates to an alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make, its include by the box and with the lightning prevention box casing of the case lid constitution that the box matches, be equipped with the box bottom plate in the box, be equipped with in the box bottom plate first installation guide rail and with first installation guide rail is parallel distribution's second installation guide rail, be equipped with direct current contactor, the direct current lightning protection device that is used for the direct current lightning protection, the interchange lightning protection device that is used for exchanging the lightning protection that is used for controlling direct current side break -make, the shunt release who is used for controlling the circuit breaker of interchange survey break -make and can turn -offs direct current contactor on the first installation guide rail, be equipped with the fuse -base who is used for installing the fuse, the binding post who is used for the wiring on the second installation guide rail, still be equipped with the ground copper bars who is used for the direct current lightning protection device, exchanges lightning protection device ground connection on the box bottom plate. The utility model discloses compact structure can practice thrift installation space, reduces use cost, easy maintenance, safe and reliable.
Description
Technical field
This utility model relates to a kind of alternating current-direct current lightning protection box, a kind of family's photovoltaic plant alternating current-direct current lightning protection box that can realize DC side break-make, belongs to the technical field of photovoltaic combiner box.
Background technology
Along with the development of human society, increasing to the demand of the energy, traditional energy is fewer and feweri, causes use cost constantly to rise.Traditional energy is day by day serious to the destruction of environment simultaneously, and solar energy is increasingly taken seriously as a kind of clean energy resource.
For family's photovoltaic power station power generation system, in order to reduce connecting line between photovoltaic module and inverter, improving maintainability convenience and the reliability of use, it is generally required to increase direct current collector-shoe gear between photovoltaic module and inverter, described direct current collector-shoe gear is i.e. photovoltaic lightningproof header box.Use photovoltaic lightningproof header box, user can be according to the input direct voltage scope of inverter, photovoltaic module identical for a number of specification is composed in series a photovoltaic module tandem, again multiple tandems are accessed photovoltaic lightningproof header box, exported after chopper by lightning protection device, reconnect the inverter of rear class.And inverter ac output, need incoming transport lightning protection box, facilitate next stage to input.
At present, photovoltaic DC lightning protection box and photovoltaic communication lightning-protection case use the form of separate type, and for photovoltaic DC lightning protection box, the unpack format of photovoltaic communication lightning-protection case, are primarily present following lower problem:
1), space is big, cost is high: during system generates electricity, Traditional DC lightning protection box and communication lightning-protection case are separate, certainly will need more space and cost；
2) in-convenience in use: because of tradition cellular-type casing, maintenance time need to open two casings, i.e. lose time, have very inconvenient；
3), DC side there is no on-off system, during maintenance, dangerous meeting causes maintainer to get an electric shock.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of family's photovoltaic plant alternating current-direct current lightning protection box that can realize DC side break-make, its compact conformation, can save installing space, reduces use cost, easy to maintenance, safe and reliable.
The technical scheme provided according to this utility model, the described family's photovoltaic plant alternating current-direct current lightning protection box that can realize DC side break-make, including the lightning protection box housing being made up of casing and the case lid that mates with described casing；In casing, it is provided with box bottom, is provided with the first installation guide rail in described box bottom and the second installation guide rail that guide rail is parallel distribution is installed with described first；
Described first installs guide rail is provided with the D.C. contactor for controlling DC side break-make, the DC lightning prevention device for DC lightning prevention, the communication lightning-protection device for communication lightning-protection, surveys the chopper of break-make and can turn off the shunt release of D.C. contactor for controlling exchange；
Second installs guide rail is provided with the fuse base for installing fuse, binding post for wiring；It is additionally provided with on box bottom for DC lightning prevention device, the grounding copper bar of communication lightning-protection device ground connection.
Described casing is provided with the casing hasp for being connected with case lid and for the wall built-up connector installed, and described wall built-up connector is symmetrically distributed in the bottom of casing, described case lid is additionally provided with scram button.
One side of described casing is provided with Waterproof cable joint in being provided with entrance hole, wire hole and ground hole, and described entrance hole, wire hole and ground hole.
The lightning labeling with warning function is posted on described case lid.
Advantage of the present utility model: DC lightning prevention device, communication lightning-protection device are installed in casing simultaneously; effectively save use space; reduce use cost; the disconnection of circuit can be realized when short circuit or electric shock by scram button and shunt release; avoid risk during maintenance; effectively protection circuit and the safety of the person, easy to use, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is side view of the present utility model.
Fig. 3 is the scheme of installation in this utility model casing.
Fig. 4 is use status circuit schematic diagram of the present utility model.
Reference locked mode: 1-lightning protection box housing, 2-wall built-up connector, 3-lightning labeling, 4-scram button labeling, 5-scram button, 6-entrance hole, 7-wire hole, 8-ground hole, 9-mounting base, 10-D.C. contactor, 11-shunt release, 12-chopper, 13-communication lightning-protection device, 14-fuse base, 15-fuse, 16-binding post, 17-securing member, 18-grounding copper bar, 19-case lid, 20-case lid hasp, 21-casing, 22-DC lightning prevention device, 23-first installs guide rail and 24-second installs guide rail.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows: in order to be able to save installing space, reducing use cost, this utility model includes the lightning protection box housing 1 being made up of casing 21 and the case lid 19 that mates with described casing 21；In casing 21, it is provided with box bottom 9, is provided with the first installation guide rail 23 in described box bottom 9 and the guide rail 23 second installation guide rail 24 in parallel distribution is installed with described first；
Described first installs guide rail 23 is provided with the D.C. contactor 10 for controlling DC side break-make, the DC lightning prevention device 22 for DC lightning prevention, the communication lightning-protection device 13 for communication lightning-protection, surveys the chopper 12 of break-make and can turn off the shunt release 11 of D.C. contactor 10 for controlling exchange；
Second installs guide rail 24 is provided with the fuse base 14 for installing fuse 15, binding post 16 for wiring；It is additionally provided with on box bottom 9 for DC lightning prevention device 22, the grounding copper bar 18 of communication lightning-protection device 13 ground connection.
Specifically, the size of case lid 19, shape match with casing 21, can form lightning protection box housing 1 by casing 21 with coordinating of case lid 19, can block seal case 21 by case lid 19.Lightning protection box housing 1 can use PC material, lightning protection box housing 1 to have rainproof, dust-proof, the ability of anti-ultraviolet.The transparent shape in center of case lid 19.Described casing 21 be provided with the casing hasp 20 for being connected with case lid 19 and for install wall built-up connector 2, by casing hasp 20 can conveniently realize case lid 19 open wait operate.Described wall built-up connector 2 is symmetrically distributed in the bottom of casing 21, wall built-up connector 2 is in the form of sheets, the outer wall of casing 21 is fixed in one end of wall built-up connector 2, and the other end is positioned at outside casing 21, whole lightning protection box housing 1 can be arranged on desired position by wall built-up connector 2.Usually, casing 21 arranging four wall built-up connectors 2 being uniformly and symmetrically distributed, case lid 19, wall built-up connector 2 lay respectively at the both ends of the surface of casing 21.
First installs guide rail the 23, second installation guide rail 24 is fixedly installed on box bottom 9 by securing member 17, and described securing member 17 specifically can select as required to use the conventional forms such as fastening bolt.Box bottom 9 is consistent with the form and dimension of casing 21, and grounding copper bar 19 is positioned at outside the one end that guide rail 24 installed by the first installation guide rail 23, second.
First installs the quantity of D.C. contactor 10 on guide rail 23 can select as required, shows the situation installing two D.C. contactors 10 in figure.DC lightning prevention device 22 installs adjacent DC catalyst 10 on guide rail 23 first, and chopper 12 is installed on guide rail 23 between shunt release 11 and communication lightning-protection device 13 first, shunt release 11 adjacent DC catalyst 10.In this utility model embodiment, by DC lightning prevention device 22, communication lightning-protection device 13 being jointly installed in casing 21, it is possible to effectively save use space, reduce use cost.
On second installation guide rail 24, multiple fuse base 14 is installed, each fuse base 14 is installed a fuse 15, second installs the quantity of fuse base 14 on guide rail 24 can select as required, and specially known to those skilled in the art, here is omitted.Fuse base 14 is positioned at one end of adjacent DC catalyst 10 on the second installation guide rail 24.Binding post 16 selects also according to needs in the second quantity installed on guide rail 24, and the most also known to those skilled in the art, here is omitted.
Further, it is additionally provided with scram button 5 on described case lid 19 and posts the lightning labeling 3 with warning function, case lid 19 also posts the scram button labeling 4 for indicating scram button 5, can realize the duty of D.C. contactor 10 grade is adjusted by scram button 5.
One side of described casing 21 is provided with Waterproof cable joint in being provided with entrance hole 6, wire hole 7 and ground hole 8, and described entrance hole 6, wire hole 7 and ground hole 8.In this utility model embodiment, cable in all entrance casings 21 is required to by entrance hole 6, all cables passing casing 21 are required to by wire hole 7, and the cable of all ground connection needs, by ground hole 8, can effectively provide waterproof ability by Waterproof cable joint.Usually, when lightning protection box housing 1 is installed fixing by wall built-up connector 2, described entrance hole 6, wire hole 7 and ground hole 8 are respectively positioned on the bottom of whole lightning protection box housing 1.
As shown in Figure 4, photovoltaic module, photovoltaic DC-to-AC converter are by the schematic diagram after the connection of this utility model lightning protection box housing 1, specifically, the outfan of photovoltaic module fuse 15 on fuse base 14 connects the normally opened contact of D.C. contactor 10, connects photovoltaic DC-to-AC converter by the normally opened contact of D.C. contactor 10.The leading-out terminal of photovoltaic DC-to-AC converter connects chopper 12 end of incoming cables through binding post 16, chopper 12 leading-out terminal gets access to grid through binding post 16, in addition, the leading-out terminal of chopper 12 connected shunt release 11, the coil of D.C. contactor 10 and scram button 5, when there being multiple D.C. contactor 10, the coil of all D.C. contactors 10 is parallel connection, and in Fig. 1, K1, K2 are respectively the coil of two D.C. contactors 10.When circuit occurring short circuit or having people to get an electric shock, the normally opened contact of D.C. contactor 10 is made to disconnect by shunt release 11, scram button 5, protection circuit and the safety of personnel.Described communication lightning-protection device 13 is parallel to the end of incoming cables of chopper 12；Described communication lightning-protection device 13 ground connection termination grounding copper bar 18, can protect electric equipment from lightning surge, switching overvoltage, Frequency Transient Overvoltage impact.
DC lightning prevention device 22, communication lightning-protection device 13 are installed in casing 21 by this utility model simultaneously; effectively save use space; reduce use cost; the disconnection of circuit can be realized when short circuit or electric shock by scram button 5 and shunt release 11; avoid risk during maintenance; effectively protection circuit and the safety of the person, easy to use, safe and reliable.
Claims (4)
1. can realize family's photovoltaic plant alternating current-direct current lightning protection box of DC side break-make, including the lightning protection box housing (1) being made up of casing (21) and the case lid (19) that mates with described casing (21)；It is characterized in that: in casing (21), be provided with box bottom (9), be provided with the first installation guide rail (23) in described box bottom (9) and the guide rail (23) the second installation guide rail (24) in parallel distribution is installed with described first；
Described first installs guide rail (23) is provided with the D.C. contactor (10) for controlling DC side break-make, the DC lightning prevention device (22) for DC lightning prevention, the communication lightning-protection device (13) for communication lightning-protection, is used for controlling the chopper (12) of exchange survey break-make and can turning off the shunt release (11) of D.C. contactor (10)；
Second installs guide rail (24) is provided with the fuse base (14) for installing fuse (15), binding post (16) for wiring；It is additionally provided with on box bottom (9) for DC lightning prevention device (22), the grounding copper bar (18) of communication lightning-protection device (13) ground connection.
The family's photovoltaic plant alternating current-direct current lightning protection box that can realize DC side break-make the most according to claim 1, it is characterized in that: described casing (21) is provided with the casing hasp (20) for being connected with case lid (19) and for the wall built-up connector (2) installed, described wall built-up connector (2) is symmetrically distributed in the bottom of casing (21), and described case lid (19) is additionally provided with scram button (5).
The family's photovoltaic plant alternating current-direct current lightning protection box that can realize DC side break-make the most according to claim 1, it is characterized in that: a side of described casing (21) is provided with Waterproof cable joint in being provided with entrance hole (6), wire hole (7) and ground hole (8), and described entrance hole (6), wire hole (7) and ground hole (8).
The family's photovoltaic plant alternating current-direct current lightning protection box that can realize DC side break-make the most according to claim 2, is characterized in that: post the lightning labeling (3) with warning function on described case lid (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105086.9U CN205543818U (en) | 2016-02-02 | 2016-02-02 | Alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105086.9U CN205543818U (en) | 2016-02-02 | 2016-02-02 | Alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make |
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| CN205543818U true CN205543818U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620105086.9U Active CN205543818U (en) | 2016-02-02 | 2016-02-02 | Alternating current -direct current lightning prevention box for photovoltaic power plant of family that can realize direct current side break -make |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281898A (en) * | 2017-12-29 | 2018-07-13 | 河南平高电气股份有限公司 | Convergence control cabinet and its cabinet |
| CN110636730A (en) * | 2019-09-26 | 2019-12-31 | 赛埃孚汽车保修设备（太仓）有限公司 | Modular structure electric control cabinet for lifting machine and installation method thereof |
-
2016
- 2016-02-02 CN CN201620105086.9U patent/CN205543818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281898A (en) * | 2017-12-29 | 2018-07-13 | 河南平高电气股份有限公司 | Convergence control cabinet and its cabinet |
| CN110636730A (en) * | 2019-09-26 | 2019-12-31 | 赛埃孚汽车保修设备（太仓）有限公司 | Modular structure electric control cabinet for lifting machine and installation method thereof |
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